Bonnie:

You are absolutely right. But the reason I used ShowDialog if because I dont want the form to open and the code that I have after that being executed. What I need from you is tell me how I kill that form that the next time I call the form does not retain the previous values and the size changed. Without changed the line to .show().
Here is the code,

Private Sub Add_btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Add_btn.Click
        DepartmentADD.ShowDialog()

    End Sub

Something that you need to explain, "You can get around this by either re-instantiating the Form" I call that method everytime I press the add button. That's not the same as re-instantiating the form?